A railway vehicle with an aerodynamic lift control device is disclosed. An equipment compartment is formed between a vehicle body bottom plate at the bottom of a vehicle body and a passenger room floor, and the aerodynamic lift control device is provided in the equipment compartment the aerodynamic lift control device comprises an aerodynamic lift regulation fan and aerodynamic lift air ducts, and an aerodynamic lift regulation air port located within the aerodynamic lift control range is formed in the vehicle body bottom plate; one end of each aerodynamic lift regulating air duct communicates with the aerodynamic lift regulation air port, and the other end communicates with the aerodynamic lift regulating fan; and the aerodynamic lift regulation fan changes the pressure distribution form of the bottom of the train by blowing positive pressure airflow or sucking negative pressure airflow.

The kinetic energy converter is coupled to a bogie of a pneumatic propulsion vehicle for a transportation system of passengers and cargo. The kinetic energy converter (6) is mounted in at least one of the axle sets (4) of the bogie structure (1). The kinetic energy converter (6) is comprised of an electric generator provided with a housing (10) where an electric generator rotor (16) spins, provided with a rotor pulley (15) moved by a belt (11) driven by a freewheel pulley (14) mounted on a drive shaft (13) provided with shaft ends (25) which are mounted onto wheel hubs (24) of the bogie structure (1). The axle set (4) is comprised of guide tubes (7) whose internal ends have flanges (8) which are connected to the supports (9) of the electric generator housing (10).

A high-speed transportation system comprises an evacuated travel conduit divided into a plurality of segments by closable gates, and associated with corresponding segment pumps that maintain operating vacuums within the segments when vehicles are present. When a segment is unoccupied, energy is saved by closing the adjoining gates and deactivating the associated segment pump, thereby deactivating the segment and allowing the segment's internal pressure to rise due to leakage. As a vehicle approaches, the segment pump is reactivated, lowering the internal pressure to the operating vacuum, and the gates are opened. Embodiments include a boom-tank system that can accelerate re-evacuation of a segment having an increased internal pressure by establishing fluid communication with at least one recently deactivated segment having a lower internal pressure. As a vehicle transits the conduit, a rolling, contiguous group of activated segments surrounding and in advance of the vehicle can be maintained.

A deflector for use with railcars and containers. The deflector may be used to retrofit railcars and other container to reduce aerodynamic drag. The deflector may be collapsible for use with stacked containers.

Proposed are renewable power generating systems driven by wind or wheel power such as train vehicle power generating systems, which are easily installed on train vehicles of trains, and which generate power without additional carbon emissions to avoid environmental pollution. One or more generator holders to hold one or more generators are installable on a train vehicle chassis. A generator wheel may be configured to touch a rail and may rotate in any direction along the rail. A generator axle may couple one or more generators to the generator wheel. The one or more generators may generate electrical power and produce zero carbon emissions while the generator wheel rotate on the rail. One or more wind turbines may also be coupled to the generator axle to supply power to the one or more generators so that the one or more generators produce zero carbon emissions while the train vehicle is moving.

Systems and methods are disclosed for providing a deployable fairing system to a tractor trailer. The deployable fairing system includes an actuator used to extend the deployable fairing from an unextended configuration to an extended configuration to occupy a portion of a gap area that exists between a tractor and an attached trailer. The deployable fairing includes deployable upper and/or lower horizontal assemblies that are pivotally coupled to a frame attached to the tractor/cab, and two side panels that are pivotally coupled to one or both of the upper and lower horizontal assemblies. The deployable upper and lower horizontal assemblies and the two side panels fold in on one another along multiple hinged axes in the unextended configuration, and extend rearward from the top and sides of the tractor in the extended configuration to cover a portion of the gap. The fairing may advantageously flair from front to the rear.

A gate valve including a gate valve door moveable between an open position and a closed position; and a track bridge moveable between a lowered active position, and a raised inactive position. When the track bridge is in the raised position, the gate valve can be moved from the open position to the closed position.

This vehicle body structural member is a vehicle body structural member (1) extending in a longitudinal direction, wherein, in at least a portion thereof in the longitudinal direction, a cross-section perpendicular to the longitudinal direction satisfies the Expressions (1) to (3).

[00001]$\begin{array}{cc}{\sigma }_{\mathrm{cr}}>{\sigma }_y& \mathrm{Expression}\left(1\right)\end{array}$$\begin{array}{cc}{\sigma }_{\mathrm{cr}}=\frac{k{\pi }^2{\mathrm{Et}}^2}{12\left(1-v^2\right)b_f^2}& \mathrm{Expression}\left(2\right)\end{array}$$\begin{array}{cc}k=4.\exp \left(-28\frac{R1t}{b_{f}b}\right)& \mathrm{Expression}\left(3\right)\end{array}$

A gangway for a rail vehicle and a rail vehicle having the same are disclosed. The gangway includes: a bellow assembly, a step plate assembly, and a load-bearing assembly. The bellow assembly includes an outer bellow and an inner bellow. The inner bellow is non-symmetrically arranged with respect to a vertical centerline of the outer bellow. The step plate assembly is arranged at a bottom of the inner bellow, to form a passageway in combination with the inner bellow. The load-bearing assembly is arranged within the outer bellow and below the step plate assembly. The load-bearing assembly includes a coupler and a support assembly. The support assembly is connected with the outer bellow and the coupler. A part of the step plate assembly is arranged directly above the coupler. In the gangway of the present disclosure, the load-bearing assembly is arranged within the outer bellow, a coupler avoidance recess is not required to be formed on the outer bellow, and a part of the step plate assembly may be arranged directly above the coupler, thereby providing a more spacious passageway.

Systems and methods for improved operations of ski lifts increase skier safety at on-boarding and off-boarding locations by providing an always-on, always-alert system that “watches” these locations, identifies developing problem situations, and initiates mitigation actions. One or more video cameras feed live video to a video processing module. The video processing module feeds resulting sequences of images to an artificial intelligence (AI) engine. The AI engine makes an inference regarding existence of a potential problem situation based on the sequence of images. This inference is fed to an inference processing module, which determines if the inference processing module should send an alert or interact with the lift motor controller to slow or stop the lift.